Discussion
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- Question
In petrol engines, during suction stroke, __________ is drawn in the cylinder
Options- A. air and fuel
- B. only fuel
- C. only air
- D. none of these
- Correct Answer
- air and fuel
- 1. The fuel pump of a programmed fuel injection (PFI) system operate for two seconds when the ignition is turned to the start position to
Options- A. enable the pump's fault-diagnosis function to operate
- B. warm up and lubricate the pump
- C. supply a large amount of fuel and thereby create a choke effect
- D. pressurise the fuel system before the engine is started Discuss
- 2. The lower cylindrical portion of the piston which improves piston cooling performance is called
Options- A. piston crown
- B. connecting rod
- C. piston pin boss
- D. piston skirt Discuss
- 3. The main characteristics of a maintenance-free (MF) battery is that
Options- A. a maintenance-free battery requires little maintenance during normal use and it is sufficient to add water instead of an electrolyte containing sulphuric acid
- B. a maintenance-free battery has a relatively short shelf life when compared with standard batteries
- C. since it is sealed, the water in a maintenance-free battery is not lost through evaporation thus accordingly it is not necessary to top up the cells with water
- D. recharging of a maintenance-free battery is neither required nor possible Discuss
- 4. During suction stroke, the inside pressure of cylinder is
Options- A. more than the atmospheric pressure
- B. less than the atmospheric pressure
- C. equal to the atmospheric pressure
- D. none of these Discuss
- 5. The auto ignition in a spark ignition engine means
Options- A. automatic ignition of the charge at the end of compression
- B. ignition induced by the passage of a spark
- C. ignition of the charge before the passage of flame front
- D. ignition induced to supplement the process of normal combustion Discuss
- 6. Which of the following parameter can be adjusted by modifying the tie-rod attachment length?
Options- A. Camber
- B. Caster
- C. Toe
- D. Steering gear ratio Discuss
- 7. The cam shaft in an engine is always mounted
Options- A. parallel to the crankshaft
- B. perpendicular to the crankshaft
- C. inclined to the crankshaft
- D. none of these Discuss
- 8. For the same maximum pressure and temperature
Options- A. Diesel cycle is more efficient than Otto cycle
- B. Otto cycle is more efficient than Diesel cycle
- C. both Otto cycle and Diesel cycle are equally efficient
- D. none of the above Discuss
- 9. The basic function of the suspension is to
Options- A. absorb vibration and impact forces from the road surface
- B. ensure that the steering wheel can deliver a suitable amount of steering force
- C. ensure that wheel alignment is not disturbed during driving
- D. automatically correct the effects of over steering Discuss
- 10. When the front wheels of a vehicle are locked during braking, then
Options- A. stopping distance becomes extremely long
- B. front tyres skid across the road surface, and the vehicle spins around
- C. rear tyres skid across the road surface, and the vehicle spins around
- D. driver loses control over the steering, and the vehicle continues moving in its current direction Discuss
Automobile Engineering problems
Search Results
Correct Answer: pressurise the fuel system before the engine is started
Correct Answer: piston skirt
Correct Answer: since it is sealed, the water in a maintenance-free battery is not lost through evaporation thus accordingly it is not necessary to top up the cells with water
Correct Answer: less than the atmospheric pressure
Correct Answer: ignition of the charge before the passage of flame front
Correct Answer: Toe
Correct Answer: parallel to the crankshaft
Correct Answer: Diesel cycle is more efficient than Otto cycle
Correct Answer: absorb vibration and impact forces from the road surface
Correct Answer: driver loses control over the steering, and the vehicle continues moving in its current direction
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